Numerical simulation of wind flow over hilly terrain

Kim, Hyun Goo; Patel, V. C.; Lee, Choung Mook

doi:10.1016/s0167-6105(00)00014-3

Cited by 92 publications

(24 citation statements)

References 24 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The impact of hilly terrain on wind speed and direction has been particularly welldocumented (e.g., Jackson and Hunt, 1975;Mason, 1987;Hunt et al, 1988;Finnigan et al, 1990;Kim et al, 2000) and there are increasing numbers of studies investigating the effects of valleys on wind regime (e.g., Whiteman and Doran, 1993;Guardans and Palomino, 1995;Sierputowski et al, 1995;Whiteman et al, 1999;. These studies have implications for understanding local meteorological patterns (Weber and Kaufmann, 1998), pollutant accumulation and dispersal (Beniston et al, 1989;Kalthoff et al, 2000), the intensity of aeolian processes and the distribution of aeolian sediment (Goossens and Offer, 1997;Bullard and Nash, 1998;.…”

Section: Introductionmentioning

confidence: 99%

Interactions Between Airflow and Valley Topography with Implications for Aeolian Sediment Transport

et al. 2002

View full text Add to dashboard Cite

Abstract:The local topography of a landscape can have a profound influence on airflow characteristics and cause modifications to broader synoptic scale winds. This paper reports the results of a preliminary field study examining the effects of a valley on wind velocity and direction. Anemometers and wind vanes were used to measure airflow characteristics upwind, within and downwind of a 20 m deep and 175 m wide dry valley in the central Namib desert. The field data indicate an upwind region of flow acceleration, a minimum in flow velocity in the center of the valley, flow acceleration toward a maximum at the downwind valley edge and subsequent deceleration toward starting velocities downwind of this edge. The development of a flow separation region at the leading edge of the valley and the range of flow distortion are affected by the incident angle of the approaching wind to the axis of the valley. A conceptual model indicating the potential implications of these findings for aeolian sediment transport processes in the vicinity of dryland valleys is presented.

show abstract

Section: Introductionmentioning

confidence: 99%

Interactions Between Airflow and Valley Topography with Implications for Aeolian Sediment Transport

et al. 2002

View full text Add to dashboard Cite

show abstract

“…In fact, the CFD simulations did predict the flow separation in the lee of the hill, albeit with some discrepancies. Later 3D steady RANS simulations for the Askervein hill were made by -among others - Kim et al (2000), Prospathopoulos and Voutsinas (2006), Undheim et al (2006), Balogh et al (2012) and Moreira et al (2012), while both steady and unsteady RANS simulations were made by Castro et al (2003), hybrid RANS/LES by Bechmann and Sorensen (2010) and LES simulations by Silva Lopes et al (2007).…”

Section: Case Studies For Isolated Hillsmentioning

confidence: 99%

“…As additional sets, the 3D CFD simulations over the Blashaval hill (Hewer 1998), Kettles hill (Kim et al 2000) and the Madeira coastal cliff (Palma et al 2008) can be mentioned. Note that all of the above-mentioned studies concern hill or valley geometries that, at least for some wind directions, give rise to flow separation.…”

Section: Case Studies For Isolated Hillsmentioning

confidence: 99%

CFD simulation of wind flow over natural complex terrain: Case study with validation by field measurements for Ria de Ferrol, Galicia, Spain

Blocken

Hout

Dekker

et al. 2015

Journal of Wind Engineering and Industrial Aerodynamics

125

View full text Add to dashboard Cite

“…In general, the RNG-based model best predicted mean velocity and turbulence characteristics, including the size and shape of recirculation zones. In a separate work, Kim et al [100] presented further case studies using the RNG model for Cooper's Ridge, Kettles Hill, Askervein hill, and the Sirhowy Valley. For Cooper's Ridge, the simulation results for mean wind speed at 3 m AGL show good agreement with measurements on the windward slope and at the hill top.…”

Section: Prediction Of the Flowfield Over Real Terrainmentioning

confidence: 99%

CFD in Wind Energy: The Virtual, Multiscale Wind Tunnel

2010

View full text Add to dashboard Cite

Over the past two decades, computational fluid dynamics and particularly the finite volume method have been increasingly used to predict the performance of wind turbines within their environment. Increases in available computational power has led to the application of RANS-based models to more and more complex flow problems and permitted the use of LES-based models where previously not possible. The following article reviews the development of CFD as applied by the wind energy community from small to large scale: from the flow around 2D airfoils to the flow through an entire wind farm.

show abstract

Numerical simulation of wind flow over hilly terrain

Cited by 92 publications

References 24 publications

Interactions Between Airflow and Valley Topography with Implications for Aeolian Sediment Transport

Interactions Between Airflow and Valley Topography with Implications for Aeolian Sediment Transport

CFD simulation of wind flow over natural complex terrain: Case study with validation by field measurements for Ria de Ferrol, Galicia, Spain

CFD in Wind Energy: The Virtual, Multiscale Wind Tunnel

Contact Info

Product

Resources

About